A host of Championship clubs have joined the race to sign Julio Arca, skysports.com understands.
Middlesbrough had tried to persuade Arca to extend his five-year stay on Teesside but they failed to come to agreement.
Now Arca is a free agent and is considering his options, and a number of clubs have entered the frame to sign him.
Premier League side Wigan, and Argentine giants Boca Juniors have both shown an eagerness to sign Arca.
But skysports.com understands that Leeds, Birmingham, Southampton and West Ham have all expressed an interest in the 30-year-old.